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Coupsil® 8113 GR

Technical Datasheet | Supplied by Evonik
Coupsil® 8113 GR by Evonik is precipitated silica, surface modified with organosilane Si 69®. The product consists of 100 parts of ULTRASIL® VN 3 modified with 12.7 parts of Si 69®. Acts as a reinforcing filler. Offers the advantage of a homogeneous modification with low moisture adsorption during storage and significantly lower development of ethanol during mixing and processing. They react with unsaturated polymers during vulcanization under formation of covalent chemical bonds. This imparts greater tensile strength, higher moduli, reduced compression set, increased abrasion resistance and optimized dynamic properties. Applications for Coupsil® 8113 GR include low rolling resistant tires with high wet grip and low heat generation, mechanical rubber goods, shoe soles. It has a shelf life of 12 months.
Product Type
  • Fillers
  • Reinforcing filler
Chemical Composition
Precipitated silica
Physical Form
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